ContChamp DRD-S
Technical Handbook
ECU 2
Elservo
39
S.
Grupp
20
9407
04-10
Converter
The converter is a electrically controlled pressure reducing valve
for the remote control of hydraulic functions. The output signal is
a porportional hydraulic servo pressure which is used to control
the spools of the main valves.
The converter consists of a solenoid and a pilot valve. It is con-
nected to the main valve spool actuator block.
The solenoid exerts a proportional force on the pilot valve. The
end of the unit is provided with a vent screw and a pushbutton for
emergency manual operation.
The control pressure output delivered by the pilot valve to the
spool actuator of the main valve is practically proportional to the
input current.
The pilot valve is closed in the neutral position.
1. Vent screw
2. Push button, manual operation
3. Solenoid
4. Pilot valve
5. Main valve
6. Spool actuator
7. Control current
8. Inlet servo pressure
9. Return servo pressure
A given control current i
s
results in a definite
servo pressure at the spool actuator
Converter
Содержание ContChamp DRD S Series
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